Minato Reaction

[The Madara Uchiha]

He would be surprised I guess and try to convince him not to help Madara but overall he will most likely get over it and fight him anyway.

 

[Almighty Ra]

He'll be shocked,sad and then highly pissed off..I wonder if his chakra will react like Hashirama's did?? Hopefully it will crack the ground and heat the air ..it's gonna be so sick